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The dual-polarization radar signature of a wind turbine: characterization and suppression

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dc.contributor.authorBeauchamp, Robert M., author
dc.contributor.authorChandrasekar, V., advisor
dc.contributor.authorCheney, Margaret, committee member
dc.contributor.authorJayasumana, Anura P., committee member
dc.contributor.authorMielke, Paul, committee member
dc.date.accessioned2017-01-04T22:59:05Z
dc.date.available2018-12-30T06:30:24Z
dc.date.issued2016
dc.description.abstractWind turbines can represent large, dynamic targets for radar systems. Their echoes can inhibit normal radar operations for observation volumes in and beyond the ranges occupied by the turbines. As a result of this interference, also referred to as "wind turbine clutter," the construction and location of wind turbines is restricted, and radar operations are limited to suboptimal performance in the contaminated areas. With the exponential growth of wind energy production, reducing the interference caused by wind turbines is critical to maintaining the performance of radar systems. In this work, characterizations of precipitation, ground clutter, and wind turbines are presented using dual-polarization weather radar observations. Without direct knowledge of a wind turbine's operating state, the physical characteristics of the turbine---specifically, its cyclostationarity---are exploited to implement a temporal suppression method to mitigate wind turbine clutter. Using the cyclostationary characteristics, 15-20 dB of suppression of the turbine blades' signature is demonstrated. A field experiment that simultaneously collected radar observations of a wind turbine and turbine state telemetry is also discussed in this work. Characteristics of the wind turbine's signature are evaluated according to the turbine's state. With this, it is demonstrated that the radar signature of the turbine is deterministic for a given turbine's state and can be modeled. With the observation-based model and state telemetry, the wind turbine blades' signature can be significantly suppressed (by more than 25 dB) in radar observations.
dc.format.mediumborn digital
dc.format.mediumdoctoral dissertations
dc.identifierBeauchamp_colostate_0053A_13875.pdf
dc.identifier.urihttp://hdl.handle.net/10217/178842
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectclutter suppression
dc.subjectradar
dc.subjectwind turbine
dc.subjectfiltering
dc.subjectcharacterization
dc.subjectsignal processing
dc.titleThe dual-polarization radar signature of a wind turbine: characterization and suppression
dc.typeText
dcterms.embargo.expires2018-12-30
dcterms.embargo.terms2018-12-30
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineElectrical and Computer Engineering
thesis.degree.grantorColorado State University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy (Ph.D.)

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